Dust-cap for tire-valves.



R. F. FRENCH.

DUST 95? FOB TIRE VALVES. APPLICATION FILED {QLY 8.19MB- I lzvvslv-ron 170ml. E FRENCH A'r-r'ys.

UNITED gTATES PATENT @FFECE.

ROYAL F. FRENCH, OF LOS ANGELES, CALIFORNIA.

DUST-CAP FOR TIRE-VALVES.

To all IF/Z0? 2'25 may concern:

Be it known that I. ROYAL l. FRENCH. a citizen of the United States. residing at; Los Angeles, in the county of Los Angeles and State of California. have invented new and useful Improvements in Dnst-CapsforTire- Valves, of which the following is a specification.

My invention relates to dust caps and con- Slsts ot' the novel features herein shown described and claimed.

Figure 1 is a fragmentary side elevation of a wheel having a. pneumatic tire and showing a dust cap embodying the principles of my invention in position for use.

Fig. 2 is a perspective of the dust cap removed from the tire valve.

Fig. 3 is ,an enlarged vertical sectional detail on the line of Fig.

Fig. l. is a horizontal cross-section on the line -tl of Fig. and looking downwardly.

Fig. 5 is an enlarged horizontal cross-seetion on the line of Fig. 2 and looking upwardly.

The main body 1 is stamped from thin resilient sheet metal and iscircular in crossseetion. has a rounded upper end 2. and slits .l and 4 extending from the lower end to near the upper end. the metal being pressed or formed so that the edges'or t'aces forming the slits are normally close together. A tlange 5 is turned inwardly at the lower end of the body. said slits 3 and l extending through the flange. .i serew-tlireaded'opening 6 is formed bv the flange, said opening being tapped to til the external threads 7 upon the tire valve. handle 8 is secured to the outer l'aee ol the part ll near the slit 2; and extends substantially halt w a v around the body a slight distanee from the part 10, and a similar handle ll is secured to the outer l'ace ot' the. part It) near the slit l and extends substantially halt way around the body a slight distance from the part 9. so that when the handles 8 and it are grasp'ed between the thumb and forefinger and pressed the parts 3 and it) will he forced. apart to release the threads (3 from the tire valve threads 7,

Specification of Letters Patent.

Application filed July 8, 1918.

-and longitudiiml slits; t having a serew-threzuled opening to fit the Patented Nov. 26, 1918. Serial No. 243.927.

A tubular felt lining 12 is inserted into the body 1 to cover the slits 3 and and exelude dust.

A spring clamp 13 is formed of a strip of resilient material such hard brass or a piece of clock spring bent to a circle sli htly smaller than the periphery of the bony 1. and the clamp is pressed downwardly around the body. the tension of the clamp being exerted to hold the parts 9 and 10 together and close. the slits 3 and l and hold the threads 6 in engagement with the the valve threads 7.

'hen it is desired to remove the dust cap the. handles 8 and 11 are pressed together sutticiently to overcome the tension of the spring clamp 13 and when it is desired to place the dust: cap in position the handles 8 and 11V are again operated to expand the spring clamp 13 and allow the threads 6 to snap over the threads T upon the tire valve.

Various changes may he made without departing from the spirit of my invention as claimed.

I claim:

1. A dust, cap comprising a cylindrical ho'd v of thin metal closed at one end and having an inturned flange atthe other end and longitudinal slits; the intnrned flange having a erew-tln'eaded opening to fit the external th ads of a tire valve; and handles eXtending from the parts formed by the slits: said handles being crossed so that pressing the handles together will spread the parts apart.

2. A dust cap comprising a cylindrical body of thin metal closed at one end and having an inturned flange atthe other end he inturned flange external threads of a tire valve; handles extending, from the parts formed by the slits; said handles being crossed so that pres ing the handles together will spread the parts apart; and a fabric lining in the hollow of the cylinder.

3. A dust eap comprising a cylindrical body of thin metal closed at one end and having an inturned flange at the other end and longitudinal slits; the inturned flange ,tending from the parts formed by the slits;

said handles being crossed so that pressing the handles together will spread the parts apart; and a spring clamp embracing the parts formed by the slits; the tension of the clamp being exerted to press the parts yieldingly together. 10

In testimony whereof I have signed my name to this specification.

' ROYAL F. FRENCH. 

